Takanori Nishikawa (西川 貴教, Nishikawa Takanori, born September 19, 1970 in Yasu, Shiga Prefecture, Japan) is a Japanese singer and actor. He performs as T.M.Revolution (TMR), which stands for Takanori Makes Revolution (貴教が革命を起こす, Takanori ga kakumei o okosu) although the name stems from the famous 80s J-Pop electronic band TM Network. Despite most of his songs being written by Akio Inoue and composed/arranged by Daisuke Asakura (also TMR’s former producer), T.M.Revolution is considered Nishikawa’s solo project.

Nishikawa debuted as TMR with the release of his first single Dokusai -monopolize- (独裁 -monopolize-) in May 1996. Later that year, his third single Heart of Sword ~Yoake Mae~ (HEART OF SWORD ～夜明け前～) was used as the third ending song for the anime series Rurouni Kenshin, further expanding his fan base. He also contributed six songs to the Mobile Suit Gundam SEED franchise – three for Gundam SEED and three for Gundam SEED Destiny. Nishikawa has guest starred as a minor character in each of those anime series that featured his songs.